| Walton upon Thames to Sestu | 952.41 mi (1,532.76 km) |
| Walton upon Thames to Settimo Torinese | 572.24 mi (920.94 km) |
| Walton upon Thames to Seveso | 589.52 mi (948.74 km) |
| Walton upon Thames to Sezze | 934.40 mi (1,503.78 km) |
| Walton upon Thames to Siano | 1,025.13 mi (1,649.79 km) |
| Walton upon Thames to Siena | 781.14 mi (1,257.13 km) |
| Walton upon Thames to Signa | 749.28 mi (1,205.84 km) |
| Walton upon Thames to Silea | 702.17 mi (1,130.03 km) |
| Walton upon Thames to Silvi Paese | 914.68 mi (1,472.04 km) |
| Walton upon Thames to Sinalunga | 799.64 mi (1,286.89 km) |
| Walton upon Thames to Siniscola | 889.07 mi (1,430.83 km) |
| Walton upon Thames to Sinnai | 954.80 mi (1,536.60 km) |
| Walton upon Thames to Siracusa | 1,252.56 mi (2,015.81 km) |
| Walton upon Thames to Solaro | 589.13 mi (948.11 km) |
| Walton upon Thames to Soliera | 695.11 mi (1,118.67 km) |
